Czech President Milos Zeman has sworn in a new cabinet led by a longtime ally.
Mr. Zeman confirmed economist Jiri Rusnok as prime minister.
The leftist president's move Wednesday angered the outgoing center-right coalition, which has a parliamentary majority. The coalition parties view Mr. Rusnok's appointment as a presidential power grab.
Mr. Rusnok's government faces a parliamentary confidence vote within 30 days and rejection is almost certain, raising the prospect of prolonged political uncertainty in the central European nation.
Mr. Rusnok replaces Petr Necas, who resigned last month. Necas' government had been hit by disputes over corruption allegations.